Book of Mormon

noun

1.

a sacred book of the Church of Jesus Christ of Latter-day Saints, believed by members of the church to be an abridgment by a prophet (Mormon) of a record of certain ancient peoples in America, written on golden plates, and discovered and translated (1827–30) by Joseph Smith.

1830, coined by religion founder Joseph Smith (1805-1844) in Seneca County, N.Y., from Mormon, supposed prophet and author of "The Book of Mormon," explained by Smith as meaning more mon, from English more + Egyptian mon "good." As an adjective by 1842. Related: Mormonism.